body{
    background: #fff;
    font-family: arial;
}
/* 头部 header */
#header{
    background: #ff841d;
}
/* 主题 main */
.site-nav{
    overflow: hidden;
    .link{
        width: 7.5rem;
        min-width: 170px;
        margin: 0.25rem auto;
        a{
            padding: 0.25rem 0.2rem;
            background: #f4f4f4;
            float: left;
            margin: 0 0 0.125rem 0.125rem;
            border: 1px solid #bfbfbf;
            color: #000;
            font-size: 0.4rem;
            img{
                margin-right: 0.125rem;
                display: inline;
                vertical-align: middle;
                width: 0.4rem;
                height: 0.4rem;
            }
        }
    }
}